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01-25-2022, 08:12 PM
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#1
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Mini-Skoolie
Join Date: Feb 2020
Location: FloRida
Posts: 10
Year: 2001
Coachwork: Bluebird
Chassis: Bluebird A3 FE 8400
Engine: 8.3l cummins
Rated Cap: 84
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My 8.3l vibration damper woes and general Cummins info
I'm looking for manuals or help from people that have access to Cummins info. I've got a FE 2001 BB with an 8.3l cummins. I've got an oil leak somewhere on the front of the engine. I'm thinking main seal or something around that. I've got the rad and intercooler out and the 4 bolts mounting the fan to the fan clutch. Here lies my problem vibration damper bolts are locked on tighter than a nun's knickers. I've tried 25 inch breaker bar with extension, 3 separate impact guns to no avail. I haven't heated them up yet.. I'm thinking there might be lock tite on them. My question is what thread direction are they. I thought they are right hand thread. My 5.9l cummins is. The second thing giving me the same grief is the fan clutch grade 10.9, 16mm bolt. I'm pretty sure this is left hand threads. Help with suggestions or first hand knowledge of these would be appreciated.
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01-26-2022, 11:02 AM
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#2
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Mini-Skoolie
Join Date: Feb 2020
Location: FloRida
Posts: 10
Year: 2001
Coachwork: Bluebird
Chassis: Bluebird A3 FE 8400
Engine: 8.3l cummins
Rated Cap: 84
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I did find a manual digging through the Skoolie archives. It was a shared link to a Google drive. 900 plus page manual. My four bolts should be torqued to 140ftlbs and the are right hand thread(regular). Which means mine must have locktite on them. Couldn't find info on the single 16mm grade 10.9 bolt holding my fan clutch on.
From Jay-Z thread
https://drive.google.com/file/d/1zvt...w?usp=drivesdk
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01-26-2022, 11:12 AM
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#3
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Bus Nut
Join Date: Feb 2019
Location: Communist State of New Jersey
Posts: 964
Year: 2004
Coachwork: IC
Chassis: CE200
Engine: T444e
Rated Cap: 27,500
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Glad to see you found it. I saw your initial post a few minutes ago but I can't help with info on that engine.
Hopefully someone with experience with that engine will come along to comment on your other questions.
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01-26-2022, 02:33 PM
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#4
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Bus Geek
Join Date: Sep 2017
Location: Swansboro,NC
Posts: 2,973
Year: 86
Coachwork: Thomas
Chassis: Ford B700
Engine: 8.2
Rated Cap: 60 bodies
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is there room to get a bottle jack under your breaker bar and cheater?
putting heat on it is taking a chance of messing it up.
and the heat needs to be on the metal housing that is actually threaded.
a trick i have used if you need to go the heat route.
get a can of air duster heat up the metal around the bolt threads until good and hot and then spray the bolt heads good with the air duster and then try to pull the bolt the air duster actually blows cold air and shrinks the bolt while heating the thread casing expands it.
just some idea?
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01-26-2022, 05:13 PM
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#5
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Mini-Skoolie
Join Date: Feb 2020
Location: FloRida
Posts: 10
Year: 2001
Coachwork: Bluebird
Chassis: Bluebird A3 FE 8400
Engine: 8.3l cummins
Rated Cap: 84
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Quote:
Originally Posted by Jolly Roger bus 223
is there room to get a bottle jack under your breaker bar and cheater?
putting heat on it is taking a chance of messing it up.
and the heat needs to be on the metal housing that is actually threaded.
a trick i have used if you need to go the heat route.
get a can of air duster heat up the metal around the bolt threads until good and hot and then spray the bolt heads good with the air duster and then try to pull the bolt the air duster actually blows cold air and shrinks the bolt while heating the thread casing expands it.
just some idea?
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I have thought bottle jack route that'll be what I do after I try some heat. I appreciate the input.
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01-27-2022, 08:56 PM
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#6
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Mini-Skoolie
Join Date: Feb 2020
Location: FloRida
Posts: 10
Year: 2001
Coachwork: Bluebird
Chassis: Bluebird A3 FE 8400
Engine: 8.3l cummins
Rated Cap: 84
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Update: All bolts were right hand thread. Got them all off with a combo of heat, bottle jack, and lots of leverage. I appreciate the ideas Jolly Roger bus 223. I might have used my legs and a 36 inch breaker bar at times too.
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02-05-2022, 10:12 PM
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#7
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Bus Crazy
Join Date: Feb 2018
Location: Golden Valley AZ
Posts: 1,036
Year: 1993
Chassis: ThomasBuilt 30'
Engine: need someone to tell me
Rated Cap: me + 1
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Quote:
Originally Posted by Jolly Roger bus 223
is there room to get a bottle jack under your breaker bar and cheater?
putting heat on it is taking a chance of messing it up.
and the heat needs to be on the metal housing that is actually threaded.
a trick i have used if you need to go the heat route.
get a can of air duster heat up the metal around the bolt threads until good and hot and then spray the bolt heads good with the air duster and then try to pull the bolt the air duster actually blows cold air and shrinks the bolt while heating the thread casing expands it.
just some idea?
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AIR DUSTER? I always used dry ice
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02-07-2022, 12:58 AM
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#8
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Bus Nut
Join Date: Jun 2021
Location: Baja often, Oregon frequently
Posts: 427
Year: 1996
Coachwork: Our hot little grubbies...
Chassis: Ford CF8000 ExpeditionVehicle
Engine: Cummins 505ci mechanical
Rated Cap: Five Heelers
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Do some harmonic balancers use a rubber insert?
Would heat from a torch be counter-productive?
As in 'melting then blazing a melting smoky inferno'?
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02-29-2024, 08:20 AM
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#9
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New Member
Join Date: Feb 2024
Posts: 1
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Quote:
Originally Posted by Live4life
I did find a manual digging through the Skoolie archives. It was a shared link to a Google drive. 900 plus page manual. My four bolts should be torqued to 140ftlbs and the are right hand thread(regular). Which means mine must have locktite on them. Couldn't find info on the single 16mm grade 10.9 bolt holding my fan clutch on.
From Jay-Z thread
https://drive.google.com/file/d/1zvt...w?usp=drivesdk
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Can you please post a new link or share a copy with a new link? That one isn't working.
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02-29-2024, 10:50 AM
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#10
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Bus Nut
Join Date: Jun 2021
Location: Baja often, Oregon frequently
Posts: 427
Year: 1996
Coachwork: Our hot little grubbies...
Chassis: Ford CF8000 ExpeditionVehicle
Engine: Cummins 505ci mechanical
Rated Cap: Five Heelers
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Quote:
Originally Posted by Live4life
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.
Link is 404.
We have Cummins 8.3 engines in two vehicles.
Your manual could be handy.
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02-29-2024, 11:44 AM
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#11
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Bus Crazy
Join Date: Nov 2014
Location: NM USA KD6WJG
Posts: 1,324
Year: 1991
Coachwork: Bluebird
Chassis: All American RE 40 FEET
Engine: Cummins 8.3
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Be careful with air duster. Some of it is flammable and can go poof if it finds an ignition source. My neighbor did that to dust out her water heater and the pilot light made it go poof and ruined her hair.
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